Pyramids are the great mystery that puzzled scientists and archaeologists for long periods of time in their hierarchical geometry, construction and location, and the stones used in construction, this is a huge challenge for scientists. The big question is how these structures survived for long periods of time despite earthquakes Volcanoes and vicissitudes in the inner layer of the earth, is there a secret buried in these pyramids?.

Many experiments and researches were conducted to find the mystery of building pyramids, and found that many pyramids were built using thermal clay. The ancient peoples used to make clay in square shape and burn it with high temperature until it solidifies and takes its present form. The pyramids of Giza are a secret, to the present, some of them say that the stones used in construction moved from the banks of the Nile to Giza using wood and ropes.
All pyramids are built for the same purpose; the burial of the kings of the Pharaohs, where they were all built on the western side of the Nile River; because of the close link with the world of the dead, the pyramid of Khufu in Giza, the largest Egyptian pyramids, and is considered one of the wonders of the world.

The ancient Egyptians needed many workers to build the pyramids. The period of pyramids was not short. For example, the pyramid of Khufu al-Akbar was built over a 23-year period and needed to build between 20,000 and 30,000 men.
Scientists have confirmed that the three pyramids were built on a single alignment with the Arctic star, believing that this saves the pyramid from robbery, and keeps the mummy inside it, and enter the positive energy to it, enabling the spirit of kings to live comfortably in the pyramids.

The three pyramids are:
1- King pyramid: This pyramid contains a room dedicated to the burial of the king, and other rooms containing his family, his entourage, and his servants, as well as a lot of passages that make it difficult for thieves to steal, in addition to secret rooms containing the deceased's objects and jewelry.
2- Pyramid of King Khafra: It contains many passages leading to the burial chamber, which were made of rock, in addition to containing many rooms.
2- Pyramid of King Khafre:
 It contains many passages leading to the burial chamber, which were made of rock, in addition to containing many rooms.
3- The Pyramid of King Munkra: Contains secret chambers and corridors that reach the end of the king's tomb.